Inner liner



reame ret.. ia, iena .fili-ienne GEORGE kw. STEWART, or

ALAMEDA, cnnrronnra.

IEEER LINEE;

f Application fue@ amil 12 1T o all whom t may concern:

Beit known that I, GEORGE STEWART, a citizen of the United States,Aresiding at Alameda, in the county of Alameda and State of California,have invented l certain new and useful Improvements in inner llin-` ers,of lwhich the following is a specification.

The inner liners now in use are made of canvas, which cannot be moldedto fit the tire. This causes the edges to curl. rihis "irregular surfacecauses the inner tube to wear rapidly throughand start an air leak.

rlfhe object of my invention is to provide an inner liner which may bemadeto exactly fit the inner `surface of the tire; and of a materialwhich gives greater resiliency.` t Referring to the drawing: y,

`Figggure 1 is a plan view of my inner liner. 20, Figure 2 is a crosssectional view of a tire embodying' my invention.

Figure 3 is a cross section of aftire show` ingr a reinforced tread.

The numeral. l1 indicates an inner liner, which is chiefly composed ofcord 2, either Wrapped or woven. Between the cord 2 and y fabric 7 an*between `the 1920, serial no. 373,112.

the inner surface oftheltire 3 is a layer of rubber @which enables theinner linerl to be vulcanized to the tire 3.

vA thin layer of canvas 5 covers the inner 30l surface 0f the cords 2,to make a smootl'r bearing surface for the inner tube. The cords 2 arewrapped sothat they `will fit the inner surface of the tire with noirreguu lar spots or curling. t rihe .inner liner gives an ordinaryfabric tire all of the advantages of a cord tire. i

in Figure 3 afterthe old tread has been removed, a newtread 6 is putupon the old d a layer of cord 8 is-placed 40 tread 6 and the fabric 7.This reinforces the tread and makes a more resilient tiref` v Havingdescribed my invention, l claim; The combination with a pneumatic tire,45 of a liner including a body of cord, a layer of rubber between thecord and thetire cas ing, and a thin layer of canvas on the inside ofthe cord. t t f In testimony whereof I alix my signature. 50

GEORGE YV. STEWART.

